Portable eye testing apparatus



39, 1932- F. HARKER PORTABLE EYE TESTING APPARATUS Filed April 29, 1950 2 Sheets-Sheet 1 Aug. 30, 1932.

F. HARKER PORTABLE TESTING APPARATUS Filed April 29, 1930 2 Sheets-Sheet 2 ii! 1 4A Patented Aug. 30, 1932 HT EJD STATES PATENT FREEZE FREDERICK BARKER, OF SOUTH ARDMORE, PENNSYLVANIA, ASSIGNOR TO WALL & OCHS,,INCORPORATED, F PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF such an apparatus or device which is portable.

-' It is. a general object of my invention to provide. an eye testing apparatus or device I PENNSYLVANIA PORTABLE EYE TESTING APPARATUS v Applicationfiled April 29, 1930. Serial No. 448,219.

1 In some cases it may become necessary'for an occulist opticianjor other person to make an examination of a persons eyes at some 'place'other than his oflice, and in any such case it is and will be desirable that he have .available an eye testing apparatus or device. 1 Tomeet such a cond1t1on and to provide means whereby a person under such circumstances may avail himself of an eye testing apparatusl have invented and constructed which is portable and which at the same time embodies novel features of construction which render ithighly desirable and efficient inthe examination of theeyes of patients.

It also is an object of my invention to provide an eye testing apparatus comprising a casing consisting of two parts which are hinged together, which parts are adapted to be adjusted into open position and held in such open position to expose simultaneously different parts of the apparatus which may be employed in the examination and testing of a persons eyes. I

A further object of the invention is to provide portable eye testing apparatus comprising means whereby the various parts thereof may be assembled in compact relation to each other within a casing to thereby facilitate the carrying of thesaid apparatus from place to place. I

A still further object of the invention is to provide a portable eye testing apparatus comprising a casing-having a main or body portion and a-lid portion. the two portions being hinged together, the one portion supporting illuminating means and the other supporting test cards. the said illuminating V I and test cards being placed in cooperative relation toeach other upon opening of' the lid portion with respect. to the main or body portion. I

ithout attempting to enumerate at this point in the specification the further objects and advantages of my invention I shall proseed with a detailed description of the same. In order. that the invention may be readily understood and its practical advantages fully appreciated reference should be had to the accompanying drawings wherein I have illustrated one'embodiment of. the invention in the form which at present is preferred by me. However, it will be understood that the invention may be embodied in other forms of construction than that shown and that changes in the details of construction may be made within the scope of the claims without departing from the said invention.

In the drawings:

Fig. 1 is a view in perspective of an apparatus embodying the invention supported in elevated position and ready for use;

Fig. 2 is a view in end elevation of the de- Vice With the parts inclosed within the casing consisting of two parts, which parts are shown in open position with respect to each other in Fig. 1;

Fig. 3 is a view in perspective of the closed casing shown in Fig. 2;

Fig. 4 is a view in elevation of the open side of the main or body portion of the casing shown in Figs. 1 and 2 with various parts of the structure assembled therein, and showing also a portion of the open side of the lid portion of the structure shown in Figs. 1 and 2;

Fig. 5 is a view in longitudinal section taken on the line of Fig. 4 with the lid portion of the apparatus shown in closed position;

Fig. 6 is a similar view taken on the line 66 of Fig. 4;

Fig. 7 is a transverse sectional view taken in different planes along the angular dash and dot line 77 of 4; and

Fig. 8 is a view showing a detail of the construction of the means for supporting the casing and the parts mounted therein in elevated position.

In-the drawings I have shown at A a casing comprising a main or body portion 1 and a lid portion 2. The portions 1 and 2 are hingedly connected together along adioinine. edges by means of hinges 3. When the said portions have been adjusted into open position, as shown in Fig. 1, they are held in such position by means of a bar 4 one end of which is pivotally connected to the inner side of an end wall of the portion 1 while the other is detachably engaged with a lug 5 upon the inner side of the adjoining end of the lid por-:

tion 2. When the parts} and 2 are in open position, as shown in Fig. 1, the upper end of the part 1 is open as indlcated. When the'said parts are in closed position, as shown in Figs; 2 and 3,-theopen endofthepart 1 is closed; by the relatively wide end of the lid portion 2-. The opposite ends of the latter are seated against shoulders :11 provided uponthe inner sides of the upper endsof the opposite sides of the member liandiare supported thereby.- v 1 i When the apparatus is'in' use it is support- "ed upon a standard a comprising telescoping parts 12-and 13, the latter being 'tubularand being-"adapted to receive the former as shown.

These two parts may be held in adjusted positionwith respect to each other by means of'a' binding screw 14.1 One end of'the part '12 is provided with a head'which is secured to the middle portion of aboard 15 by means of fastening bolts 16. "The lower end of the V part'13 is provided with legs 17 which are adapted to be folded againstand inparallel V relation to thesaidportion 13. The bracing and holding portions 18 at such *time also are "and againstthesaid portion13'. o 7

'When the dev ce isin positlon' relation 'to' each other, as shown in 'said fig ure, by means of the parts 18, the upperends of which are connected to a {slidable 'sleeve 19 which may be held in adjustedpositionby means of a binding screw 20.

The bottom or closed endof the part l of v the casing is provided with guides 21 which are 'l'ocated in adj oining re'lation tothe oppositeedges of the sai'dbo'ttom. f'

When it is desired to use the device the board 15, previously referred to, is placed in engagement =With'the said guides, theparts 1 12 and 13 having. been previously placed in telescoping'relation with respect to each other and the legs 17 having been adjusted into position to support the device.

' 'VVhen, however, it is desired-to(transport I thedevicefrom one place to another the board 15is disengaged from the guides 21, the parts 12 and are separated from each other; and the legs ,17and the braces 18 col lapsed, shown in Figs. 5t and 5 of the drawor-upp'er edges thereof, and also by lugs or ings. The board 15 is then placedin position nthe' open upper end-of thepart 1,;being supported therein by the bar 22 which extends between the opposite sides ofthe part 1 and is located iii-adjoining relation to the outer I projections 23-which are securedto'the inner surfaces of theppposite sidesiofthe' said part in adj dining relation to theupper endsth'ere moved; upwardly into-position parallel with r refuse, as showninF-ig. lithe 'legs areheld in angular 7 of. The upper edges of the bar 22 and the r lugs 23 are located in the same plane.

After the board 15 is placed in position the lid portion 2 may be closed, the end 10 there'- of moving into position above the board 15 andqretaining'the' same upon the supports 22 and 23 therefor." The portio1r12whe11 the.

board 15 is in position upon its supports 22 and 23 extends into. the casing. Theporti-on ,1-3 withthe legs 17 an-d the bjraces 18 in;position against and in parallelrelation lto the I ,said vportion 13 is maintained within the part 1. i

For holdingzthezsaid part 13 and the associated parts 17 and 18 in'position I have provided upon the inner side of the'closedaend of the part 1 a lug or projection 25 which projects into the lower :open end. of-the tubular member 13. The upperopen. end *ofrthe said member engages a projectionr26whi'chris pro- 2 5 videdupon the underside ofq'the board '15. After I these parts i have i been placed in position and'the lid: closed and seeuredin closed position by the fastening means comprising the co-acting members :27 -and .28 thefs'aid parts are retained in position-.7]

The opposite sides of the lid portion 2 :are;

-p rov i'ded -with channels 30 for iremovablyisupporting test cards 31. 'These "channels are era widthto 1 01a thefdesiredinumber offtest" cards.

cards when the lid portion is in open posie01 as" shown in Fig; 1, Ihaveprovi'ded u laminatin means consisting of electric lights troughshape which is supported in adjoin; r ing relation to what'maybe regarded as the r front edge of the part 1; "Theopposite ends of the trough shaped reflector' are rotatably front edge portion,ofthe,part lof thecasing.

For the-purpose of or pivotally supported by means-of pivot 1 screws 37 which extend intofopenings provided in brackets 38 1whi'ch aremountedfupon. and project inwardly from the adjoining The projections 37 are rotatable in'the open" ings provided in the" brackets 38' so 'th-at 'the reflector 36 may be adjustedwith its open side i in proper relation to the open 'side of ported in the channels 30. i

the lid portion 2 to illumin'ate'the cards sup- A'supply of current tothe fil ghts 35 and'to a light {10 is controlled by means-of electric.

switches providedin a casing 41 mounted upon the inner side of the part I'near oneendf thereof. The switch casing 1 is provided with projections 42 which are adapted to be en gaged by means 'of a switch plug 13 con nected'to one end of a conducting wire 44, the opposite ends of which are providedjwith.

aplug of any suitable construction havi When the device is not in 'lusefth'e plug 4.311s

placed in engagement'withprojectionsii45 upon a s deioft'he part 1 01f the cas ingand connection with the source ofelectric current;

the conductor 44 folded up, as indicated in Fig. 4 of the drawings.

The light 40 is located in front of an opening 46 which is provided in the outer side of the part 1 of the casing. The purpose of the light 40 and of the hole 46 is to test the muscles of the eyes.

For the purpose of facilitating the transfer of the testing device or apparatus from one place to another I have provided the same with a handle 50.

It will be seen that by my invention I have provided an eye testing apparatus which is capable of being used practically for the testing of eyes and which also is readily portable from placeto place.

Having thus described my invention what I claim and desire to secure by Letters Patent is:

1. A portable eye testing apparatus comprising'a casing having a main part and a lid part, the two parts having hinged connection with each other and adapted to be adjusted into open position relative to each other, a support for holding the said casing in position for use, means for adjustably connecting said support to the said casing, and means for mounting the said support within the main part of the said casing to thereby increase the portable characteristic of the said apparatus.

-2. A portable eye testing apparatus comprising a casing consisting of two parts hinged together which parts are adapted to be opened and closed, a support for the said apparatus, said support consisting of a plurality of parts which are detachably connected together and one of the said parts having a flat base portion for connection to the said apparatus, means provided in one of the parts of said casing for engaging the base part of the said support for supporting the same, additional means within the said. casing for engaging the other of the parts of said support for supporting the same, and means carried by one of the parts of the said casing for overlying the base portion of the first named part of the said support when the casing is closed for retaining the same within the said casing.

In testimony that I claim the foregoing as my invention I have hereunto signed my name this 28th day of April, A. D. 1930.

FREDERICK HARKER. 

